Title :
High Power Oscillation of Reduced Spatial Hole Burning DFB Laser
Author :
Talneau, A. ; Charil, J. ; Ougazzaden, A. ; Bouley, J.C. ; Duan, G.H. ; Girardin, F.
Author_Institution :
PAB Lab. de Bagneux, France Telecom, Bagneux, France
Abstract :
In order to reduce spatial hole burning -SHB- that restricts the performances of DFB lasers, a AMC -amplitude modulated coupling- structure is introduced into MQW DFB -multiquantum well distributed feedback- lasers emitting near 1.55μm. The highest single longitudinal mode output power is 78mW at 500mA (cw operation). Modelisation of AMC structure behaviour above threshold is presented, and high power single mode oscillation of devices confirms that AMC flattens the power distribution along the cavity.
Keywords :
III-V semiconductors; amplitude modulation; arsenic compounds; distributed feedback lasers; gallium compounds; indium compounds; laser cavity resonators; optical hole burning; optical modulation; quantum well lasers; DFB laser; GaInAsP; MQW DFB lasers; amplitude modulated coupling; cavity; current 500 mA; high power single mode oscillation; multiquantum well distributed feedback lasers; power 78 mW; power distribution; reduced spatial hole burning; Distributed feedback devices; Etching; Gratings; Laser feedback; Laser modes; Optical coupling; Power generation; Power lasers; Semiconductor lasers; Shape;
Conference_Titel :
Solid State Device Research Conference, 1993. ESSDERC '93. 23rd European
Conference_Location :
Grenoble
